Exo/j-fus.] BRITISH ICHNEUMONS. 257 



4. splendens, Gnw. 



Mesoleptus splendens, Gr. I. IC. ii. 115, 9. Exolytiis spUmiens, Ftirst. Verh. Wien. 

 z.-b. Ver. 1876, pp. 56 et 104, 6 9. Alractodes splendens. Thorns. O. V.. x. 1021, i 9 . 

 A. incessor, Hal. Ann. Nat. Hist. 1839, p. 118. 



Head with the vertex narrow, clypeus sub-discreted, cheeks glabrous 

 and nitidulous. Flagellum filiform throughout, basally sub-rufescent be- 

 neath. Abdomen black, with the second and the third segments partly 

 or wholly red, the former in 9 rather longer than apically broad ; basal 

 segment margined throughout ; tcrebra very shortly exserted. Anterior 

 legs red, with the coxae black ; hind ones black, with the apices of the 

 trochanters, base and apex of the femora, the tibiae and tarsi red. Wings 

 sub-hyaline, with the stigma dull testaceous, radix white and tegulae in- 

 fuscate ; areolet pentagonal and apically incomplete. Lower wings with 

 the median nervure basally almost entirely wanting ; nervellus sub-opposite. 

 Length, 4 mm. 



This species is smaller than E. scrutator, with the flagellum filiform 

 throughout and more slender, the coxae and trochanters are black, 

 second $ segment longer, vertex narrow, cheeks polished and clypeus 

 sub-discreted. 



Bridgman first found it at Brundall in Norfolk, in July ; Wilson 

 Saunders subsequently in Surrey ; Chitty at Margate, in I\Lay ; and I have 

 specimens from Ipswich, in 1894: Mildenhall, in June; and Henstead 

 marsh, on flowers, in August. It is probably widely distributed. 



MESATRACTODES, Morley. 



Head transverse, obsoletely pubescent, evenly and not deeply punctate ; 

 clypeus distinctly discreted, apically glabrous and truncate, laterally 

 sinuate; mandibles slender, punctate, with the upper tooth the longer; 

 cheeks sub-buccate ; maxillary palpi cylindrical ; labial with the basal 

 joint clavate, the two following minute and the apical strongly elongate. 

 Antennae elongate, with the five basal flagellar joints apically sub-callose ; 

 of $ tricoloured, filiform and apically obtuse, of $ half as long again as 

 the body and apically attenuate. Notauli elongate but not deeply im- 

 pressed, mesopleural sulcus wanting ; metathoracic costae strong, central 

 area sub-confluent ; sj)iracles circular and directed backwards. Abdomen 

 nitidulous, sub-cylindrical, of $ apically compressed ; basal segment sub- 

 linear, a little ex[)lanate apically, laterally curved and margined throughout, 

 with the S[)iracles central ; terebra not exserted. Legs normal ; tibiae 

 short, the front ones distinctly spinulose anteriorly ; calcaria strongly 

 curved, onyches short and stout. Wings somewhat narrow ; areolet not 

 indicated, fenestra broad and confluent ; nervellus intercepted distinctly 

 below its centre. 



In many important particulars this genus materially differs from all the 

 Cryplitiae known to the author, and it were i)erhai)S better treated of in 

 the Afes(>/e/>tirii, near Cat/idiotes, but its facies are so strongly similar to 

 Atractodes that it is provisionally here placed, i)ending the discovery of a 



s 



